Bountied questions cannot be closed: this prompted this meta-MO question. In the answer to that question, the reasons for this feature are explained (closure would shorten the bounty period, possibly causing the loss or misattribution of bounty points), while acknowledging the possible drawbacks.

The drawback being the possible bumping of questions that users may consider as off-topic, with no possibility of closure by MO community. In the current setting, it is not possible to vote for closure (even with closure delayed after the end of bounty). The purpose of this post is to "nominate" bountied questions for closure, as a tick mark so as to possibly vote after the end of the bounty (then avoiding new bountying). Ideally an answer to this post should refer to a MO question that is bountied when posting here, and would include:

1. link to the bountied post (just paste it, so it displays the post title),
2. technical closure reason (as in the list of closure reasons). Note that migration is usually impossible for old questions.
3. ending date of bounty

Followed by any further comment or meta-data. Comments for or against closure relative to each listed question are welcome, possibly by editing the answer (whence cw request). Up/downvotes to an answer should be understood as for/against closure of the question after the end of the bounty.